7 Blade Propeller for 220/285/230/310 kgf Bow ThrustersThis is the 7-bladed propeller for the BOW220/285 /310 bowthrusters. Working in close collaboration with the Maritime Research Institute Netherlands (MARIN), the world-famous hydrodynamic laboratory, VETUS has optimized the performance of its thrusters. This has been achieved by utilizing a unique propeller blade profile. As cavitation produces unwanted noise, this new blade design offers a major reduction in operating sound levels. Moreover, the application of this new propeller reduces the current consumption by up to 10%. table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Truck Freight: No Oversized: No